Carl stroomann



(No Mom.)

AC. STROOMANN. l LoooMoTIv BUILBR. No. 578,682.

Patented Mar. 9,1897.

00o oo oo oo .fter-neg UNITED STATES PATENT OFFICE;

CARL STROOMANN, OE COLOGNE, GERMANY.

LOCOMOTIVE-BOILER.

SPECIFICATION forming part of Letters Patent No. 578,682, dated March 9,1897.

Application iiled October 17, 1895. Renewed January 28,1897. SerialNo.621,124. (No model.) Patented in Germany Y December 21, 1891, No.65,093.

To LtZZu/tom, it may concern,.-

Be it known that I, CARL STRooMANN, a subject of the King of Prussia,Emperor of Germany, residing at Cologne, in the German Empire, haveinvented certain new and useful Improvements in Locomotive-Boilers,(forwhich I have obtained a patent in Germany, No. 65,093, dated December21, 1891;) and I do hereby declare the following to be a fullspecification.

This invention relates to locomotive-boilers having a two-chamberwater-tube boiler at the place of the fire-box.

In the accompanying drawings, Figure 1 is a longitudinal section; Fig.2, a front elevation; and Fig. 3, a cross-section on line x of Fig. 1,partly in elevation.

The upper part a of the water-tube boiler is arranged above the middleline of the firetube boiler b, so that both boilers are connected in thewater -space and the steamspace, so as to form a surface of evaporationsimilar to the one in ordinary locomotiveboilers.

The chamber c is placed in such a way before the fire-tubes t' that theconnection of the fire-spaces is left open, as shown in Fig. 3, andwhereby the space d is provided for the ashes and as thecombustion-chamber. l

The lateral arrangement of the chamber c sidewise to the upper boiler dpermits of giving to the boiler the same form as that of a boiler havingan ordinary lire-box, with the difference, however, that it has agreater source of power.

The arrangement of the water-tubes behind the fire-tubes instead ofunder the same produces also a greater space .of combustion.

Having thus described my invention, what I claim is- In alocomotive-boiler, the combination of a fire-tube section, a fire-boxsection connected with the rear end thereof, and a combustion-chamberbetween the lower parts of the two sections; thefire-box sectionprovided with water-tubes and a boiler a, the latter located between thewater-tubes and the crown of the boiler proper, and having its forwardCARL STROOMANN.

Witnesses:

FRITZ SCHRDER, FRIEDRICH SAssE.

